Effect of different hebicides on weed control in rice nursery

摘要

Field experiments conducted during 1990 and 1991 to evaluate different herbicides for their efficacy in weed control in rice nursery, revealed that butachlor @ 0.6 kg ha~(-1) applied 3 or 6 days before sowing was most effective, and caused little phytotoxicity to rice nursery. Thiobencarb @ 0.6 kg ha~(-1) or anilofos @ 0.1 kg ha~(-1) applied 3 or 6 days before sowing provided 60 to 66% control of barnyard grass. In both the years, there was about 70% reduction in dry weight of weeds over weedy check when butachlor was applied 3 days before sowing @ 0.6 kg ha~(-1) .